Ventilator.



l. W. GERKE, E.1. BRAISTED 46L E. T. KELLEHER. VENTILATOR. APPLICATION HLED APR. 13. 1.916. 1,228,202. Patented May'29, 1917,

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To all whom t may concern:

Be it known that we, JjAcoB W. GERKE, EDWARD J. BnAisriiD, and EDMOND T. KEL- Liii-IER, citizens of the United States, residing at Flushing, in the county of Queens and State of New York, have invented certain new and .useful Improvements in Ventilators, of which thefollowing isa specilication. i

relates to ventilators, and pertains especially to a Ventilating device adapted to be applied to cars, automobiles, buildings, windows, and in various places for exhaust ventilation.

The object of the invention is to provide a mechanically operated ventilator vane or valve contained within an open end casing forming a throat and coperating with a pair of oppositely situated openings in the throat f of the construction .and relative combination view of a lventilatorshowingthe reverse position of the vane or valve in dotted lines.

Fig. 3 is a .cross section taken "on the plane indicated by the dotted line A-A Fig. 4 is a detail perspective view of the throat and casing partly broken away.

Fig. A5 is a perspective view of the vane Vor valve.

Specification of Letters Patent. Application filed April 13, 1916. Serial N o. 90,869.

'or their equivalent,

he several parts, as will be hereinafter f away resented May 29;, i917.

' Fig. 6is a front view, partly broken away, showing acpairof lshutters in partly closed position.l j f V Fig. 7 is a yperspective view Fig. 8 isa detail sectional view'of an end bracket showing means for controlling the slidable bar. A Y

Fig. 9 is a detail perspective .viewshowing the connection between the slidable bar and the valve'lever.

ig. 10 is a perspective view of a modiiication partly broken away.

Fig. 11 is a similar view of a further modification.

The same reference characters denote the same parts throughout the 'several views of the drawings. l

Although the ventilator is shown applied foul or impure air, applicable to refrigerator cars, and to windows of buildings, las will be hereinafter vmore particularly explained.

he frame or holder 1, has air exhaust or 5, and the stems are provided with suitable heads 6, `for sliding the shutters.

after explained. A slidable-bar; 10, is hung from or adjacent to the transom,.by means of a plurality of hangers 11 through which the bar extends, and a special end bracket 12 is provided'for holding the-bar 10 in various slid-5 The end` bracket threaded post Q18 able positions as desired. comprises a hollow screw bar l0, and the latter is provided with seats of a shutter.

at 9 for the purpose as will be hereinhaving. a

19, hereinafter referred to, into which the ball is forced for holding the bar as desired. rllhis end of the bar has a depending hand lever 20, for operating the bar. lThe bar 10 is provided With set blocks 2l having a slotted fiange 22, and the purpose of these blocks vvill hereinafter appear.

The more essential features of the invention will novv be described in detail. The outer casing 23 has open ends, and an inner Wall or base 23 provided with an opening 24E central of the length of the casing, said opening being of the same size and fitting over the transom opening 2, Where the casing is secured by screws 25, or other suitable means. rl`he casing 23 contains an open end valve-casing 2G forming a throat and prefer; bly of shorter length than the casing 23, but having the ends thereof eX- tending beyond the ends of the opening 2e.. rlhe side Walls of the casing 26 are solid throughout but the wall of the throat casing 2G opposite the base Wall of the casing 23 has an opening 27 opposite the openings 2 and 2a, and preferably of greater length than said openings. rlhe throat casing 2G is so fixed within the casing 23 as to form an airv passage 28 between three Walls of the casing 23 and three Walls of the throat casing2G. The vane or air valve 29 is pivoted in and central of the throat by means of a crank shaft 30, having a lever 3l Working in the slot of the block flange 22, and this block is adjusted on the bar 10 according to the swing or throw of the valve 29, and for the same reason the ball seats at the end of the bar l0., are accurately spaced apart. The valve 29 spans the openings 2 and 24, and is swung by the sliding movement of the bar so, as to have one end o f the valve engage the vvall of the throat adjacent to the throat opening 27, While the other end of the valve is in engagement With the base Wall adjacent t0 one end of the opening 24, as particularlv shown in Fig. 2 of the drawings, Where it will be observed that (the moving direction of a car being indicated by the arrovv a) the position of the valve is such as to shut off the passage of air through the forward end of the throat and through the openings 27, 24: and 2 into the car, but the outside air currents pass over the valve and through the passage 28, and through the opposite end of the casing, and thereby draw the air from the car or other compartment through the rear or open end of the throat. @bviously When a car is moving in the opposite direction the position of the valve is reversed as shown in dotted lines Fig. 2. The side edges and. ends of the valve are provided With felt 32 or other suitable material for making an air-tight closure of the valve, and the Wall of the throat adjacent to the opening therein is also provided with similar material 32a.

A plurality or chain of valves for each side of a car, in such numbers as desired or as occasion may demand, may be housed as hereinbefore described, and connected respectively with an operating bar 10, for each side of a car.

rfhe shutters 5 are stopped in closing movement by the shoulders 8 striking a projection 33 of the base vvall central of the openings 2 and 24;, so that one or both shutters may be partially or entirely closed. The cut outs 9 of the shutters allovv free operation of the crank lever, with one or the other of the shutters in closed position, or with both shutters partially closed. The shutters, of course, are operated vto vary the exhaust ventilation and to close the same entirely. The openings 2 are covered by gauze netting 2e.

Referring to the modification shown in Fig. l0, the casing 34:, and throat 35 are practically the same as those hereinbefore described, and having air passages 36 3G, but the valve 37 is straight and of sufficient length to span the throat 36u, and the elongated opening 38, in a holder 39, Which is adapted to be set in desired position for ventilation,l and the valve is operated by a lever 37a. This ventilator may or may not have slidable shutters applied thereto, and is applicable to a window or an automobile.

Referring to the modification shown in Fig. 11, the casing 40 is the same as those hereinbefore described. rl`he throat ll has only one open end, and the other end thereof is branched from the base plate 42 of the casing so as to close this end of the throat, and the base plate i2 is provided with an exhaust opening opposite an opening all in the holder 45. A single shutter i6 is slidably contained betvveen the holder and the base plate.

It Will be observed that no back draft or air current is permitted to enter a car or other compartment through these ventilators, that the ventilators may be applied Wherever they may be found adaptable, and that the valve controlling device is such as to prevent valve movement or operation by air pressure.

'We do not confine ourselves to any par Vticular number of assembled ventilators, to any particular size or material in the manufacture thereof, nor to the particular position of the slidable bar, and We do not limit ourselves in the practical application of the invention, but reserve the right to make such changes and variations therein and in the application thereof as may come Within the scope of the appended claims.

Having thus described our invention what we claim as new and desire Letters Patent is l. An ejector ventilator of within the other and affording an air channel between the walls of the casings and within the outer casing, the inner wall of the outer casing having communication with the inner casing, the o uter wall of the inner casing having an air opening in communication with said channel, a valve pivoted in the inner casing' and closing communication between said openings, and means for operating the valve to alternately open and close communication between the ends of the casings and said openings.

2. An ejector ventilator comprising a pair of casings one within the other and having walls spaced apart, the inner wall of the outer casing having `an air opening, the outer wall of the inner casing having an air opening opposite the opening in the outer casing and adjacent to a solid wall of the outer casing, a valve in the inner casing and closing communication between said openings, and means for operating the valve to alternately open and close communication between the ends of the casings and the openings.

3. An ejector ventilator comprising an outer casing having an air opening in the inner wall thereof, a casing fixed to said wall within the outer casing and lhaving side Walls flush with the sides of said opening, the outer wall of the inner casing having an air opening opposite the opening in the outer casing, a valve swingable in the inner casing and closing communication between said openings, and means for operatto secure by an air opening in ing the valve to alternately open and close communication between the ends of the casings and said openings.

In an ejector ventilator, an open end outer casing having an air opening through the inner wall thereof, an open end casing contained within the outer casing and having an air opening through the outer wall thereof, said casings forming an air channel within the outer casing between the walls of the casings, a valve within the inner casing and closing communication between said openings, and means for operating the valve to `alternately open and close communication between the ends of the casings and said openings.

5. In an ejector ventilator, ing having an air opening in the inner Wall thereof, a casing contained in the outer casing and having side walls vfixed tosaid inner wall, the outer wall of the inner casing having an air opening opposite y.lthe opening in the outer casing, the inner casing terminating in open ends between said opening in the outer casing and the ends of the outer casing, a valve in the inner casing and closing communication between said openings, and means for operating the valve to alternately open and close communication between the ends of the casings and said openings.

Inr witness whereof we hereunto set our hands in the presence of two witnesses.

JACOB W. GERKE. EDWARD J. BRAISTED. EDMOND T'. KELLEHER.v

Witnesses:

CHARLES BUHLMANN, JOHN COLLINS.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

an outer cas-' 

